In This Guide
1 Supply Chain Visibility Gaps
The biggest discovery in any process mapping exercise is the gap between how people think the process works and how it actually works. Visual mapping forces that confrontation.
2 Process Mapping on a Canvas
| Card Color | System/Team | Examples |
|---|---|---|
| Blue | WMS (Warehouse Mgmt) | Inventory allocation, pick ticket, pack confirmation |
| Green | TMS (Transport Mgmt) | Carrier booking, route optimization, tracking |
| Purple | Manual Steps | Quality inspection, custom packaging, exception handling |
| Orange | Customer-Facing | Order confirmation, delivery notification, returns portal |
| Red | Exception Paths | Stockout handling, damage claims, carrier failures |
3 Finding Bottlenecks
Returns Process: Cycle Time by Step
Quality inspection was the clear bottleneck — longer than all other steps combined
4 Tracking Improvement Initiatives
Every improvement initiative must have a Measurement milestone 30–60 days after implementation. Without it, you’ll never know if the change actually reduced cycle time — and you’ll keep "improving" without evidence.
5 Continuous Improvement Cadence
Process improvement often creates new bottlenecks downstream. When you speed up pick/pack by 40%, the carrier booking step — which used to have a comfortable buffer — suddenly becomes the constraint. Monthly snapshots reveal these shifts.
Key Takeaways
- Map the actual process flow with cards, connectors, and time estimates — not how you think it works
- Color-code by system or team to instantly spot manual gaps between automated steps
- Run Critical Path Analysis to find the longest (slowest) path through the process
- Track improvement initiatives with measurement milestones to verify actual results
- Monthly snapshots reveal how bottlenecks shift as you improve individual steps